Date: Wed, 17 Feb 2010 15:40:39 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: attilio@FreeBSD.org Cc: arch@FreeBSD.org, emaste@sandvine.com Subject: Re: [PATCH] Adding shared code support for ia32 and amd64 -- x86 sub-branch Message-ID: <20100217.154039.1142818667055144394.imp@bsdimp.com> In-Reply-To: <20100216.135906.812628220523048669.imp@bsdimp.com> References: <3bbf2fe11002151610l41526f55r5e60b5e46ce42b64@mail.gmail.com> <20100216.135906.812628220523048669.imp@bsdimp.com>
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In message: <20100216.135906.812628220523048669.imp@bsdimp.com>
"M. Warner Losh" <imp@bsdimp.com> writes:
: In message: <3bbf2fe11002151610l41526f55r5e60b5e46ce42b64@mail.gmail.com>
: Attilio Rao <attilio@FreeBSD.org> writes:
: : There are few things to discuss. One, that I had not necessity to dig
: : about still, is about how to organize headers (include/). Maybe some
: : replication ala pc98 may be good.
:
: Most of the pc98 replication these days is in the form of "#include
: <i386/foo.h>" and we install i386/include into /usr/include/i386 as
: well as pc98/include into /usr/include/machine.
:
: I'm working in a similar vein. For a while, one has had to specify
: TARGET_BIG_ENDIAN in order to build big endian MIPS or ARM binaries.
: This is lame. I've eliminated it and have made it possible to build
: mipsel, mipseb, arm or armeb binaries by setting TARGET_ARCH to one of
: these, while still sharing all the mips code in one directory and all
: the arm code in another.
You can see the results of this work in
http://people.freebsd.org/~imp/tbemd.diff
the patch is a little rough, and there's an issue with make universe
for mips kernels still that I need to track down[*], but otherwise it
looks good.
Warner
[*] Well, and a bigger, meta question: if we're building all the
kernels for a given MACHINE setting, and that MACHINE setting supports
both endians, how do we cope (short of putting back in the big endian
hacks I'm trying to eliminate).
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